CN210595430U

CN210595430U - Sewage treatment device of biomembrane

Info

Publication number: CN210595430U
Application number: CN201920957289.4U
Authority: CN
Inventors: 钟仁华; 施正; 蔡红春; 彭诗阳; 何勇
Original assignee: Hunan Xinheng Environment Technology Co ltd
Current assignee: Hunan Xinheng Environment Technology Co ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-05-22
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a sewage treatment device of a biological membrane, which comprises an air supply device, wherein the air supply device is communicated with a supporting part through an air transmission pipeline, the supporting part is communicated with a biological membrane bed, the biological membrane bed is columnar, and the outer surface of the biological membrane bed is provided with a plurality of exhaust micropores and protruding parts; the utility model has simple structure and convenient use, solves the problems that the biological rotating disc method needs to be arranged on the surface of the reaction tank, the space utilization rate is not high, and large area is needed; the bottom air pump device is easy to disturb sludge at the bottom of the pool to be fixed on the biomembrane bed and is not easy to clean; leading to the problems of too thick biological film and putrefaction accidents.

Description

Sewage treatment device of biomembrane

Technical Field

The utility model belongs to the silt field of handling, especially, relate to a sewage treatment plant of biomembrane

Background

Domestic sewage is wastewater discharged in daily life of residents and mainly comes from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, industrial enterprise toilets and the like. The pollutants contained in the domestic sewage are mainly organic matters, such as protein, carbohydrate, fat, ammonia nitrogen and the like. Organic matters existing in domestic sewage are extremely unstable and easily decomposed to generate offensive odor. Bacteria and pathogens in the sewage propagate in large quantities by taking organic matters in the domestic sewage as nutrients, so that infectious diseases can be spread and epidemic can be caused. Therefore, domestic sewage must be treated before being discharged. There are many methods for treating sewage, and for example, gravity settling, a settling tank, an activated sludge method, a biofilm method, a chemical precipitation method, a redox method, an adsorption method, and the like are commonly used. The biofilm method is a water treatment method which is widely applied at present. The biofilm method is to make the sewage continuously flow through a filler or a carrier (such as crushed stone, slag or plastic honeycomb and the like). On the packing material, a film-like biological sludge can be formed, which is called a biofilm, and a biofilm attachment is called a biofilm bed. A large number of microorganisms are propagated on the biological membrane, which can play the same purifying role as activated sludge and adsorb and degrade organic pollutants in the sewage; meanwhile, as the thickness of the film is increased to a certain degree, the excessively thick film is required to fall off from the disc surface and flow away with water, otherwise, the biological film corruption accident can be caused. Realizing the treatment of sewage. The application number is CN201720727845, and the beneficial effect of this utility model ability does, and the carbon fiber biomembrane is difficult to harden, and the operation is stable, reduces maintenance, maintenance cost of labor. But has the defects that the manufacturing cost of the carbon fiber is high, so that the production cost is increased, and the popularization is not facilitated. Furthermore, the current bio-disc rule, which is most widely used, faces the following problems: the biological rotating disc method needs to be arranged on the surface of a reaction tank, the space utilization rate is not high, and a large area of land is needed; thirdly, the sludge at the bottom of the pool is easily disturbed and fixed on the biological membrane bed by the bottom air pumping device, so that the sludge is not easy to clean; leading to the excessive thickness of the biological film and the occurrence of putrefaction accidents.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a biomembrane sewage treatment device, which has simple structure and convenient use, solves the problem that the biological rotating disk method needs to be on the surface of a reaction tank, has low space utilization rate and needs large area of land occupation; the bottom air pumping device is easy to disturb sludge at the bottom of the pool to be fixed on the biological membrane bed and is not easy to clean; leading to the problems of too thick biological film and putrefaction accidents.

In order to solve the technical problems, the specific technical scheme is as follows:

the utility model provides a biofilm sewage treatment plant, includes gas supply unit, and gas supply unit passes through gas transmission pipeline and supporting part intercommunication, supporting part and biofilm bed intercommunication, the biofilm bed is the column, is equipped with a plurality of exhaust micropores and protruding portion on the surface.

Further, the air-discharge micro-hole is located in a recess formed between the protrusions.

Furthermore, the plurality of protrusions are provided with protrusions in the shape of long edges; the bulge is relatively vertical to the pool surface direction.

Further, a plurality of thorn devices are arranged on the plurality of bulges.

Furthermore, the gas supply device can preset and control the time and frequency of the change of the pressure intensity of the output gas.

The utility model has the advantages that: the technology uses the bionic structure of coral for reference, increases the reaction area of the biomembrane bed through the design of the protruding part, and improves the space utilization rate. The utility model discloses a micropore's of protruding portion cooperation exhaust structure can increase the fine bubble that forms when exhausting and at the stickness of biomembrane reaction face, makes the oxygen that contains in the bubble stay between the protruding portion and accumulates, makes the microorganism in the pond can fully carry out aerobic respiration. In the air-increasing mode, the micro steam pocket is rapidly accumulated and broken, and the excessively thick biological membrane is effectively stripped from the bottom of the protruding part. The problems that the biological rotating disk method needs to be arranged on the surface of a reaction tank, the space utilization rate is low, and a large area of land is needed are solved; the bottom air pumping device is easy to disturb the sludge at the bottom of the pool to be fixed on the biological membrane bed and is not easy to clean; leading to the problems of too thick biological film and putrefaction accidents.

Description of the drawings

FIG. 1 is a schematic structural view;

fig. 2 is a partial schematic view.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Example 1

According to the figures 1 and 2, the biomembrane sewage treatment device comprises a gas supply device 1, wherein the gas supply device 1 is communicated with a support part 3 through a gas transmission pipeline 2, and the support part 3 is communicated with a biomembrane bed 4, and is characterized in that the biomembrane bed 4 is columnar, and a plurality of exhaust micropores 5 and protruding parts 6 are arranged on the outer surface of the biomembrane bed. The gas-discharge micro-holes 5 are located in recesses formed between the protrusions 6. The projections 6 are provided with protrusions 8 in the shape of long ribs which stand in the direction of the pool surface. A plurality of thorn devices 9 are arranged on the plurality of convex parts 8. This biomembrane bed is for the reference coral structure carries out the bionics engineering design, and biomembrane bed 4 on the supporting part 3 is equipped with protruding portion 6, has thorn device 9 on protruding portion 6, and has arch 8 on protruding portion 6, so-called arch 8, upright and the pool face relatively, mean to use the pool face as the horizontal plane, the degree contained angle that the arris of long arris form arch 8 intersects with the plane is more than or equal to 0 degrees and is less than or equal to 180 degrees. Thus, the contact area of the biomembrane bed 4 and the water body is increased, and more microorganisms can be attached to the biomembrane bed under the condition of occupying the same area. And the microporous exhaust 5 is positioned in the concave formed between the protruding parts 6 and part of the protruding parts 6, and the thorn devices 9 and the air supply device 1 are matched with each other to further enable the microorganisms to be fully contacted with oxygen. The thorn device 9 can be attached with bubbles, and oxygen in the bubbles can be fully dissolved in the water body close to the biological membrane.

Example 2

Different from the embodiment 1, on the basis of the embodiment 1, the gas supply device 1 can control the output gas pressure intensity and set the intensity change time and frequency, and increase the oxygen supply amount of the biomembrane bed area in the low-pressure gas supply state, thereby promoting the growth of the microbial membrane and the effect of adhering pollutants. When the air pressure is increased, the bursting pressure of the steam pocket makes the biological membrane fall off quickly, so as to avoid the corruption accident caused by over-thickness, ensure that the microorganisms in the water body are kept in a very stable ecological state and accelerate the beneficial bacteria in the water body to absorb the pollutants in the water body. Provides more suitable living environment for the microbial reproduction, accelerates the growth of beneficial microbiota and improves the treatment efficiency of water pollutants.

The problems that the biological rotating disk method needs to be arranged on the surface of a reaction tank, the space utilization rate is low, and a large area of land is needed are solved; the bottom air pumping device is easy to disturb sludge at the bottom of the pool to be fixed on the biological membrane bed and is not easy to clean; leading to the problems of too thick biological film and putrefaction accidents.

Example 2 is the best mode.

The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A biomembrane sewage treatment device comprises an air supply device (1), wherein the air supply device (1) is communicated with a supporting part (3) through an air transmission pipeline (2), and the supporting part (3) is communicated with a biomembrane bed (4), and is characterized in that the biomembrane bed (4) is columnar, a plurality of exhaust micropores (5) and protruding parts (6) are arranged on the outer surface of the biomembrane bed, and the protruding parts (6) are long prismatic bulges (8); the bulges (8) are relatively erected in the direction of the pool surface, and a plurality of thorn devices (9) are arranged on the bulges (8).

2. A biofilm sewage treatment device according to claim 1, wherein said air-discharge micro-pores (5) are located in recesses formed between the protrusions (6).

3. The biofilm sewage treatment device according to claim 1, wherein said gas supply device (1) is preset to control the output gas pressure intensity, time and frequency.